| // Copyright (c) 2019, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8; |
| |
| import java.util.stream.Collector; |
| |
| public abstract class Collectors { |
| |
| public static <T> Collector<T, ?, T> toSingle() { |
| return java.util.stream.Collectors.collectingAndThen( |
| java.util.stream.Collectors.toList(), |
| items -> { |
| assert items.size() == 1; |
| return items.get(0); |
| }); |
| } |
| } |